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- [33] RETENTION OF ADDITIVES IN Y2O3 GD2O3 LA2O3 AND ALPHA-AL2O3 JOURNAL OF CHEMICAL PHYSICS, 1968, 48 (08): : 3830 - +
- [34] High Transparency Nd: Y2O3 Ceramics Prepared with La2O3 and ZrO2 Additives Pan, Wei, 1600, Blackwell Publishing Inc., Postfach 10 11 61, 69451 Weinheim, Boschstrabe 12, 69469 Weinheim, Deutschland, 69469, Germany